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Author: Subject: MX5 Coolant Plumbing Diagram
ash_hammond

posted on 4/5/14 at 04:24 PM Reply With Quote
MX5 Coolant Plumbing Diagram

Would anyone happen to have a diagram as to how they have plumbed in their MX5 engine?

Cheers

Ash







.: www.mac1motorsports.co.uk | www.m1moc.com :.

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skov

posted on 5/5/14 at 07:05 AM Reply With Quote
I don't have a diagram, but you might be able to figure out how I did mine from looking through my build photos:

HaynesRoadsterPart2

HaynesRoadsterPart3

EDIT:
Just realised this is in the MX5 section, so not sure if you're talking about MX5's or MX5 engines in sevens.

Here's a diagram of the OEM set up if that helps:




[Edited on 5/5/14 by skov]

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ash_hammond

posted on 5/5/14 at 06:54 PM Reply With Quote
Thanks for the reply.

I did mean a MX5 engine in a 7 type car.

However, the picture has helped and given me some thoughts.







.: www.mac1motorsports.co.uk | www.m1moc.com :.

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rdodger

posted on 5/5/14 at 08:38 PM Reply With Quote
It might be worth searching for the coolant re route before you start.






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Fencewrecker

posted on 2/6/14 at 06:44 PM Reply With Quote
Hi

My 1.8 MX5 in my 7 is plumbed as standard except:

The 2 pipes to the heater are connected together
The expansion tank is mounted on the scuttle in the engine bay connected by: Top outlet connecting via 1/2" pipe to the bleed pipe on top of the rad, the lower expansion tank outlet is connected into the Thermostat bypass pipe. I have also added a non pressurised expansion tank, as in the original MX5 setup. These engines do blow past the cap then suck it back when cool.
It has been like that for 3 years and has been fine, though I would caution taking time to beed the system fully.

Hope this helps, if you want to see mine I am not far away in West Yorks so U2U .

Dave

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